Version 5.8  287  September 2009 
SIP User's Manual   6. Configuration Parameters Reference 
 
Parameter  Description 
MWI Source Number 
[MWISourceNumber] 
Determines the calling party's phone number used in the Q.931 MWI 
SETUP message to PSTN. If not configured, the channel's phone 
number is used as the calling number. 
Digit Patterns The following digit pattern parameters apply only to voice mail applications that use the 
DTMF communication method. For the available pattern syntaxes, refer to the CPE Configuration 
Guide for Voice Mail. 
Forward on Busy Digit 
Pattern (Internal) 
[DigitPatternForwardOnB
usy] 
Determines the digit pattern used by the PBX to indicate 'call forward 
on busy' when the original call is received from an internal extension. 
The valid range is a 120-character string. 
Forward on No Answer Digit 
Pattern (Internal) 
[DigitPatternForwardOnN
oAnswer] 
Determines the digit pattern used by the PBX to indicate 'call forward 
on no answer' when the original call is received from an internal 
extension. 
The valid range is a 120-character string. 
Forward on Do Not Disturb 
Digit Pattern (Internal) 
[DigitPatternForwardOnD
ND] 
Determines the digit pattern used by the PBX to indicate 'call forward 
on do not disturb' when the original call is received from an internal 
extension. 
The valid range is a 120-character string. 
Forward on No Reason Digit 
Pattern (Internal) 
[DigitPatternForwardNoRe
ason] 
Determines the digit pattern used by the PBX to indicate 'call forward 
with no reason' when the original call is received from an internal 
extension. 
The valid range is a 120-character string. 
Forward on Busy Digit 
Pattern (External) 
[DigitPatternForwardOnB
usyExt] 
Determines the digit pattern used by the PBX to indicate 'call forward 
on busy' when the original call is received from an external line (not an 
internal extension). 
The valid range is a 120-character string. 
Forward on No Answer Digit 
Pattern (External) 
[DigitPatternForwardOnN
oAnswerExt] 
Determines the digit pattern used by the PBX to indicate 'call forward 
on no answer' when the original call is received from an external line 
(not an internal extension). 
The valid range is a 120-character string. 
Forward on Do Not Disturb 
Digit Pattern (External) 
[DigitPatternForwardOnD
NDExt] 
Determines the digit pattern used by the PBX to indicate 'call forward 
on do not disturb' when the original call is received from an external 
line (not an internal extension). 
The valid range is a 120-character string. 
Forward on No Reason Digit 
Pattern (External) 
[DigitPatternForwardNoRe
asonExt] 
Determines the digit pattern used by the PBX to indicate 'call forward 
with no reason' when the original call is received from an external line 
(not an internal extension). 
The valid range is a 120-character string. 
Internal Call Digit Pattern 
[DigitPatternInternalCall] 
Determines the digit pattern used by the PBX to indicate an internal 
call. 
The valid range is a 120-character string. 
External Call Digit Pattern 
[DigitPatternExternalCall] 
Determines the digit pattern used by the PBX to indicate an external 
call. 
The valid range is a 120-character string.